-54.08% is the change from 638 to 293
Calculation steps:
[( 293 - 638 ) ÷ 638] x 100 = -54.08%
Formula
Percentage change = [(293 - 638) / 638] x 100
Subtract the new number by the original number
293 - 638 = -345
-345 ÷ 638 = -0.5407523510971787
-0.5407523510971787 x 100 = -54.08%